Wegner's theory
The name of the supercontinent Wegner proposed
Pangea
Name the 4 layers from inside to outside
Inner core, outer core, mantle, crust
When magma is heated in the mantle, what happens to it's density?
It becomes less dense
Which plate boundary can cause a subduction zone?
Convergent Boundary
How old is Mr Saye
34
The 4 pieces of evidence Wegner had for his theory
Shape, Fossils, Climate, Geology (rock)
which layers of the Earth are considered liquid or semi-liquid?
Mantle, outer core
How do convergent boundaries move?
Plate move towards each other and collide
What forms a mid ocean ridge? (boundary and crust type)
Divergent boundary with oceanic crusts
Which city will host the 2032 Olympics?
Brisbane
What have we discovered that Wegner did not know about that is the driving force for moving continents/crust of Earth?
Convection Currents
How deep into the Earth in km have humans drilled?
12km
The 2 convection currents below the plates of a divergent plate must be flowing in _________ directions
opposite directions
As the plates of a transform boundary scrape past each other, what feature can be seen on the crust?
A Fault Line
The Lord of the Rings
Give an example of how climate evidence proved Wegner's theory
(can explain either coal deposits or glacial Scratches accurately)
Lithosphere Asthenosphere
Lithosphere floats on the asthenosphere
Explain the differences between the types of crust
continental - Thicker and less dense
Oceanic - Thinner and more dense
When two oceanic crusts collide, volcanos are formed. This is called a _________ ________ _____
Volcanic Island Arc
Which artist painted Starry Night
Vincent Van Gogh
In what year did Wegner propose his theory?
Hint it is after 1900.
1912
What two metals make up the inner core?
Which type of boundary destroys crust?
Convergent
When two oceanic crusts collide, which one would subduct?
The Older Crust
What is the collective name for a group of crows?
A murder of crows